arch/all-pc/boot/grub/util/grub-md5-crypt.in

   1 #! /bin/sh
   2
   3 # Encrypt a password in MD5 format
   4 #   Copyright (C) 2000,2002 Free Software Foundation, Inc.
   5 #
   6 # This file is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 # Replaced by the configure script.
  21 prefix=@prefix@
  22 exec_prefix=@exec_prefix@
  23 sbindir=@sbindir@
  24
  25 # Initialize some variables.
  26 grub_shell=${sbindir}/grub
  27 progname="grub-md5-crypt"
  28
  29 # Check the arguments.
  30 for option in "$@"; do
  31     case "$option" in
  32     -h | --help)
  33         cat <<EOF
  34 Usage: $progname [OPTION]
  35 Encrypt a password in MD5 format.
  36
  37   -h, --help              print this message and exit
  38   -v, --version           print the version information and exit
  39   --grub-shell=FILE       use FILE as the grub shell
  40
  41 Report bugs to <bug-grub@gnu.org>.
  42 EOF
  43         exit 0
  44         ;;
  45
  46     -v | --version)
  47         echo "$progname (GNU GRUB ${VERSION})"
  48         exit 0
  49         ;;
  50
  51     --grub-shell=*)
  52         grub_shell=`echo "$option" | sed 's/--grub-shell=//'`
  53         ;;
  54
  55     *)
  56         echo "$progname: unrecognized option \`$option'"
  57         echo "Usage: $progname [OPTION]"
  58         echo "Try \`$progname --help' for more information."
  59         exit 1
  60         ;;
  61     esac
  62 done
  63
  64 # Suppress echo backs. I don't know if this is really portable. -okuji
  65 stty -echo
  66
  67 # Prompt to enter a password.
  68 echo -n "Password: "
  69 read -r password
  70 echo
  71
  72 # One more time.
  73 echo -n "Retype password: "
  74 read -r password2
  75 echo
  76
  77 # Resume echo backs.
  78 stty echo
  79
  80 if test "x$password" = x; then
  81     echo "Empty password is not permitted."
  82     exit 1
  83 fi
  84
  85 if test "x$password" != "x$password2"; then
  86     echo "Sorry, passwords do not match."
  87     exit 1
  88 fi
  89
  90 # Run the grub shell.
  91 $grub_shell --batch --device-map=/dev/null <<EOF \
  92     | grep "^Encrypted: " | sed 's/^Encrypted: //'
  93 md5crypt
  94 $password
  95 quit
  96 EOF
  97
  98 # Bye.
  99 exit 0